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김수복(Kim, Soo Bok) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The operation efforts by user are depended on arm profile shape of door checker in door. We used to satisfy the target efforts by trial and error making the door checkers of different arm profile several times. In this paper by developing program of calculating efforts on CATIA, the number of trial and error will be reduced..
윤상민(Sang-Min Yoon),강성종(Sung-Jong Kang) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.3
Door effort was calculated for a new door checker with torsion bar spring and integrated checker case by FE analysis. A hybrid checker arm which has peaks and valleys only on the upper surface was adopted to reduce noise in operation and make operation with more distinctive steps. The checker arm was modeled using shell elements to estimate both the longitudinal and the lateral resistance force by checker arm. By combining the checker arm resistance force obtained from analysis and the door self-closing force by the theoretical calculation, door effort was predicted to show the good correlation with test results. In addition the unrolling effect of roller model was investigated and a new roller type for more smooth rolling was studied.